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lectin

American  
[lek-tin] / ˈlɛk tɪn /

noun

Biochemistry.
  1. any of a group of proteins that bind to particular carbohydrates in the manner of an antibody and are commonly extracted from plants for use as an agglutinin, as in clumping red blood cells for blood typing.


lectin British  
/ ˈlɛktɪn /

noun

  1. a type of protein possessing high affinity for a specific sugar; lectins are often highly toxic

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of lectin

1954; < Latin lēct ( us ), past participle of legere to gather, select, read + -in 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

To create the AbLec, they replaced one arm of the antibody with a lectin, choosing either Siglec-7 or Siglec-9.

From Science Daily Dec. 23, 2025

When sialic acids attach to lectin receptors on immune cells, they can switch on an immune dampening pathway.

From Science Daily Dec. 23, 2025

Kidney beans contain a protein called lectin that can lead to nausea, vomiting and diarrhea if they're consumed raw or undercooked.

From Salon Sep. 10, 2022

Suddenly, he realized, there was no need to add the plant-based lectin in order for the drug to work.

From New York Times Nov. 13, 2014

The first to publish a study were the scientists Michael Brownlee and Anthony Cerami, who in 1979 embedded a sugar-encrusted form of insulin in a mesh pouch with a sugar-loving protein called lectin.

From New York Times Nov. 13, 2014

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